Ōmura Sumitada
Ōmura Sumitada (大村 純忠, 1533 – June 23, 1587) Japanese daimyo lord of the Sengoku period. He achieved fame throughout the country for being the first of the daimyo to convert to Christianity following the arrival of the Jesuit missionaries in the mid-16th century. Following his baptism, he became known as "Dom Bartolomeu". Sumitada is also known as the lord who opened the port of Nagasaki to foreign trade.
Early life
Ōmura Sumitada was born in 1533, the son of Arima Haruzumi, lord of Shimabara, and his wife, who was a daughter of Ōmura Sumiyoshi. His childhood name was Shōdōmaru 勝童丸. At age 5, he was adopted by his uncle Ōmura Sumisaki, and succeeded to the Ōmura family headship in 1550. As Sumisaki had no legitimate heirs, and the Ōmura clan had its origins in the family line of the Arima, Sumisaki readily adopted the young Shodomaru, who took the name Sumitada at the time of his succession.
Career
Following his succession, he was immediately faced with a multitude of pressures, the greatest of which was the attack from Ryūzōji Takanobu of Hizen-Saga. Sumitada found the answer to his problems in the form of Christianity. In 1561, following the murder of foreigners in Hirado (in the area of influence of the Hirado clan), the Portuguese began to look for other ports where they could trade.